I hate dirty eggs, even when there's just a tiny point of dirt on one in a box! I wish the EU would make egg-washing mandatory, even for purely "aesthetic" reasons :)
If the eggs are for baking, they're safe. If they're not going to be cooked that long, I usually wash the eggs exactly before use. That way I remove any dirt before opening the shell, and at a point where removing the egg's cuticle is not an issue any more.
